Reinforcing exterior shell for a bathtub



FIG. 1 is a bottom perspective view of a reinforcing exterior shell for a bathtub showing my new design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a cross sectional view taken on line 4--4 of FIG. 3;

FIG. 5 is a cross sectional view taken on line 5--5 of FIG. 3;

FIG. 6 is a top plan view thereof;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a right end elevational view thereof;

FIG. 9 is a left end elevational view thereof; and,

FIG. 10 is a rear elevational view thereof.

The broken line representation of a bathtub in FIG. 2 is for purposes of illustration only and forms no part of the claimed design. 

An ornamental reinforcing exterior shell for a bathtub, as shown and described. 